Log restore alters log input row so it can't be processed correctly by future rules

During a restore, the log process script uses the input parameter $log as the target for data from the log processing.

If there is an attempt to process a log record and a problem is found, the $log is altered but the function returns false. The parent function then loops to the next rules to see if it can be successfully decoded. However by this time the $log is invalid and no other rules will match.